Write characters to an output stream, translating characters into bytes according to a specified character encoding. Each OutputStreamWriter incorporates its own CharToByteConverter, and is thus a bridge from character streams to byte streams. The encoding used by an OutputStreamWriter may be specified by name, by providing a CharToByteConverter, or by accepting the default encoding, which is defined by the system property file.encoding. Each invocation of a write() method causes the encoding converter to be invoked on the given character(s). The resulting bytes are accumulated in a buffer before being written to the underlying output stream. The size of this buffer may be specified, but by default it is large enough for most purposes. Note that the characters passed to the write() methods are not buffered. For top efficiency, consider wrapping an OutputStreamWriter within a BufferedWriter so as to avoid frequent converter invocations. For example,
Writer out = new BufferedWriter(new OutputStreamWriter(System.out));
See Also: BufferedWriter, OutputStream
OutputStreamWriter(OutputStream) Create an OutputStreamWriter that uses the default character encoding.
OutputStreamWriter(OutputStream, String) Create an OutputStreamWriter that uses the named character encoding.
close() Close the stream.
flush() Flush the stream.
getEncoding() Return the name of the encoding being used by this stream.
write(char[], int, int) Write a portion of an array of characters.
write(int) Write a single character.
write(String, int, int) Write a portion of a string.
OutputStreamWriter
public OutputStreamWriter(OutputStream out, String enc) throws UnsupportedEncodingException
Create an OutputStreamWriter that uses the named character encoding.
Parameters: out - An OutputStream enc - Name of the encoding to be used Throws: UnsupportedEncodingException If the named encoding is not supported
OutputStreamWriter
public OutputStreamWriter(OutputStream out)
Create an OutputStreamWriter that uses the default character encoding.
Parameters: out - An OutputStream
getEncoding
public String getEncoding()
Return the name of the encoding being used by this stream. May return null if the stream has been closed.
write
public void write(int c) throws IOException
Write a single character.
Throws: IOException If an I/O error occurs Overrides: write in class Writer
write
public void write(char cbuf[], int off, int len) throws IOException
Write a portion of an array of characters.
Parameters: cbuf - Buffer of characters off - Offset from which to start writing characters len - Number of characters to write Throws: IOException If an I/O error occurs Overrides: write in class Writer
write
public void write(String str, int off, int len) throws IOException
Write a portion of a string.
Parameters: str - A String off - Offset from which to start writing characters len - Number of characters to write Throws: IOException If an I/O error occurs Overrides: write in class Writer
flush
public void flush() throws IOException
Flush the stream.
Throws: IOException If an I/O error occurs Overrides: flush in class Writer
close
public void close() throws IOException
Close the stream.
Throws: IOException If an I/O error occurs Overrides: close in class Writer
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